JP4724788B2 - Air check system, air check device and air check program - Google Patents

Description

  The present invention relates to an air check system, and more particularly to an air check system that acquires desired content from a large number of contents such as music and movies transmitted from a broadcasting station.

  In general, air check is a way to record content such as songs and movies broadcast on radio or television on a storage medium, and play back the recorded content later. Widely used among viewers.

  However, viewers do not know when their favorite songs will be broadcast. For example, in radio broadcasting, it may be known in advance that a desired song is broadcasted in a certain program, but it is not known at what time zone in the program. Therefore, in order to record a desired song, the viewer must listen carefully to the program from the beginning. In addition, your favorite song may be broadcast before you know it.

  By the way, a broadcasting station creates a cue sheet listing music information about music that has been aired and provides it to viewers via the Internet. The song information in the cue sheet includes song meta information such as the title and artist name of the broadcasted song and the broadcast start time of the song. In the broadcasting station, after one or a plurality of songs are on air, the song information for each on-air song is sequentially registered in the cue sheet. This cue sheet allows viewers to know exactly what songs were broadcast when, but since those songs were already broadcast, there was a desired song in them But it is impossible to record now.

  Recently, an increasing number of users listen to music with portable terminals such as portable audio players and mobile phones represented by portable HDD players. In order to listen to songs on air from a broadcast station on a mobile device, you must first store the broadcast containing the songs on air in a storage medium, find the song from there, and transfer the data to the mobile device. Such work is complicated.

In addition, for example, if you are out and you can't listen to the radio, you won't be able to listen to songs that are on the air, or you can't even know the fact that your favorite songs are on the air unless you listen to the radio.
Japanese Patent No. 3869826 JP 2002-108352 A JP 2007-059035 A

  An object of the present invention is to provide an air check system that can be quickly acquired after a content is broadcast, even if the user does not listen to a broadcast from a broadcast station.

  Another object of the present invention is to provide an air check system that can be quickly acquired by a terminal after a user-desired content has been broadcast without listening to a broadcast from a broadcast station.

Means for Solving the Problems and Effects of the Invention

  An air check system according to the present invention includes a server and an air check device. The server includes server storage means, server transmission means, and update means. The server storage unit stores the cue sheet. The cue sheet includes a plurality of pieces of content information regarding broadcast times of a plurality of pieces of content broadcast from a broadcasting station. The update means sequentially adds content information of the content broadcast over time to the cue sheet to update the cue sheet. The server transmission means sequentially transmits the content information added to the cue sheet to the air check device. The air check device includes a receiving means, an air check storage means, an acquisition means, and an extraction means. The receiving means receives broadcast data including a plurality of contents broadcast from a broadcasting station. The air check storage means stores the received broadcast data. The acquisition unit sequentially acquires content information added to the cue sheet from the server. When the adding means acquires the added content information, the extracting means refers to the content information and extracts the content from the broadcast data stored in the air check storage means.

  In this case, when new content is broadcast from the broadcast station, the air check device can extract the broadcast content with reference to the added content information. Therefore, even if the user of the air check device is not listening to the broadcast, the user can quickly acquire the content after the content is broadcast.

  Preferably, the air check system includes a user terminal connectable to the air check device. The air check device further includes air check transmission means. The air check transmission unit transmits the extracted content to the user terminal when the content is extracted.

  In this case, after the content is broadcast, the content can be quickly acquired by the user terminal. Therefore, when the user goes out with the user terminal, the content can be quickly acquired by the user terminal when the content is broadcast even if the user is not listening to the broadcast.

  Preferably, the air check storage means further stores content extraction conditions. The extraction unit further extracts content that satisfies the extraction condition.

  In this case, the user terminal acquires only content that satisfies the extraction condition. Therefore, for example, if the user's favorite content condition is set as the extraction condition, the user can quickly view the content on the user terminal after the favorite content is broadcast. In addition, since the user terminal does not receive transmission of content that does not satisfy the extraction condition, acquisition of unnecessary content can be prevented.

  Preferably, the content information includes a broadcast start time of the content. The server storage means further stores program guide information relating to the broadcast times of a plurality of programs broadcast from the broadcast station. The acquisition unit further acquires program guide information from the server. The extracting means further specifies the program end time of the program that broadcasts the content specified by the added content information. Then, based on the broadcast start time and the program end time in the added content information, the content specified by the added content information is extracted from the broadcast data.

  In this case, content can be extracted from broadcast data with high accuracy.

  Preferably, the air check transmission unit further includes a notification unit and a content transmission unit. The notification means transmits a notification to the user terminal before transmitting the extracted content. The content transmission unit transmits the extracted content when receiving a response from the user terminal that transmitted the notification.

  In this case, the user can acquire the content only when necessary by referring to the notification transmitted to the user terminal.

  The air check device according to the present invention is used in the above-described air check system. The air check program according to the present invention is executed by a computer in the above-described air check device.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In the drawings, the same or corresponding parts are denoted by the same reference numerals and description thereof will not be repeated.

[First Embodiment]
[overall structure]
Referring to FIG. 1, an air check system 10 according to an embodiment of the present invention is for automatically acquiring a desired song from a radio frequency modulation (FM) broadcast, and is a queue connected to the Internet 11. A sheet server 12, a personal computer (PC) 13 connected to the Internet 11, and an FM tuner 14 connected to the PC 13 are provided. A plurality of broadcast station servers 16 are also connected to the Internet 11. The cue sheet server 12 is managed by a provider who provides this service, and the broadcast station server 16 is managed by a broadcast station which mainly broadcasts music programs and the like. The PC 13 and the FM tuner 14 are the property of the user who is the viewer. The air check system 10 further includes a portable terminal 5 used by the user.

  The cue sheet server 12 acquires a cue sheet from each broadcast station server 16 and provides it to the PC 13 of each user. The PC 13 functions as a client that can access the cue sheet server 12. The PC 13 and the FM tuner 14 constitute an air check device 80.

  The PC 13 is a general-purpose device, and as shown in FIG. 2, a CPU (Central Processing Unit) 131, a memory 132 such as a ROM (Read Only Memory) and a RAM (Random Access Memory), a hard disk drive (HDD) 133, a display 134, An input device 135 such as a keyboard and a mouse is provided. An air check program described later is installed in the PC 13. The FM tuner 14 receives FM broadcasts from each broadcasting station and supplies the received broadcast data to the PC 13.

  The mobile terminal 5 is, for example, a mobile phone, a PDA, or a portable audio having a communication function. Similarly to the PC 13, the portable terminal 5 has a configuration as shown in FIG. That is, the mobile terminal 5 includes a CPU, an HDD, a display, and an input device. An MP3 player that encodes and reproduces data is also provided. The portable terminal 5 may or may not have a tuner that can receive broadcast data.

[Queue sheet server]
With reference to FIG. 3, the cue sheet server 12 includes an acquisition unit 20, a format conversion unit 21, a service information addition unit 22, and a web server 23. The acquisition unit 20 accesses each broadcast station server 16 and acquires the cue sheet 24 uploaded thereto.

  In the cue sheet 24 provided from each broadcasting station, song information of songs that have been on-air as time passes is sequentially registered. In the following description, the latest music information registered in the cue sheet 24 is referred to as MI [n], and the music information registered immediately before it is referred to as MI [n−1]. The song information MI [n] includes meta information of the on-air song M [n] and the broadcast start time begin [n]. The meta information includes the title and artist name of the song M [n].

  The song information MI [n] is described in HTML (Hyper Text Markup Language). However, the format, such as the type of information described, the type of tag used, the order of description, etc., varies from broadcast station to broadcast station. The cue sheet 24 does not describe the broadcast end time of the broadcasted music M [n].

  The format conversion unit 21 converts the format of the acquired cue sheet 24 into a predetermined common format. The format conversion unit 21 has a plurality of conversion filters 25 corresponding to a plurality of types of formats. Each conversion filter 25 converts a corresponding format into a common format.

  The cue sheet 26 thus obtained has a common format. Specifically, as shown in FIG. 4, the cue sheet 26 includes a field 261 that describes a station ID (identifier) assigned to each broadcasting station, and a plurality of songs corresponding to a plurality of songs broadcast from the broadcasting station. And a record 262.

  In each record 262, song information MI of the corresponding song M is registered. Specifically, the broadcast start time begin of the song M and metadata are described. FIG. 5 shows an example of the cue sheet 26. The broadcast end time may be described in the cue sheet 26, but in this case, the broadcast end time is obtained based on the broadcast start time. Specifically, the broadcast end time of the song M [n−1] is the same as the broadcast start time begin [n] of the song M [n] broadcast after the song M [n−1].

  Referring to FIG. 3 again, the service information adding unit 22 adds various predetermined service information to each cue sheet 26 converted into the common format. Various service information includes a URL (Uniform Resource Locator) of a website that sells CDs, DVDs, concert tickets, and the like that record broadcast songs, URLs of websites that sell digital data of the songs, banner advertisements, etc. is there. Therefore, the cue sheet server 12 can be a portal site for guiding users to various websites 27.

  The acquiring unit 20 further acquires a program guide 69 provided from each broadcasting station. The program table 69 is recorded with time schedules of a plurality of programs broadcasted by the broadcasting station. In the cue sheet 26, the on-air song information is registered every time the song is on-air. That is, the cue sheet 26 is frequently updated as time passes. On the other hand, the program guide 69 is already determined before the program is broadcast. That is, the program guide 69 is not frequently updated even after the broadcast time has elapsed, and does not change.

  The program table 69 includes the broadcast time (program start time and program end time) of the broadcasted program, information about the program name, DJ and performers, and metadata such as the program homepage URL. Within each program, the above-mentioned plurality of songs are broadcast. That is, the program includes a plurality of songs. The program may include only one song or may not include any song.

  The format of the program guide 69 provided from each broadcast station differs from broadcast station to broadcast station, as is the case with cue sheets. Therefore, the format conversion unit 21 converts the acquired program guide into a predetermined common format. The program guide 70 thus obtained has a common format. An example of the obtained program table 70 is shown in FIG. The program table 70 includes a station ID, broadcast start time and broadcast end time of the broadcasted program, and metadata.

  In the web server 23, a cue sheet database 28 and a program guide database 71 are constructed. The cue sheet 29 to which various service information is added is stored in the cue sheet database 28, and the program guide 70 is stored in the program guide database 71. The web server 23 reads the cue sheet 29 and the program guide 70 in response to a request from the PC 13 and transmits them to the PC 13.

  Next, the operation of the cue sheet server 12 will be described with reference to FIG.

  The acquisition unit 20 requests each broadcast station server 16 to transmit the cue sheet 24 and the program guide 69 (S101). Each broadcasting station server 16 receives this request (S201), and transmits the cue sheet 24 and the program guide 69 to the cue sheet server 12 (S202). The acquisition unit 20 receives the cue sheet 24 and the program guide 69 (S102) and supplies them to the format conversion unit 21.

  The format conversion unit 21 converts the format of the cue sheet 24 into a common format, and creates the cue sheet 26 shown in FIGS. 4 and 5 (S103). The created cue sheet 26 is supplied to the service information adding unit 22.

  The service information adding unit 22 adds service information to the cue sheet 26 (S104), and stores the cue sheet 29 obtained thereby in the cue sheet database 28 (S105).

  The format conversion unit 21 further converts the format of the program guide 69 into a common format and creates the program guide 70 shown in FIG. 6 (S103). The created program guide 70 is stored in the program guide database 71 (S105).

  The cue sheet server 12 executes the above-described operation every predetermined period (for example, every 30 seconds). Accordingly, the cue sheet 29 is frequently updated, and the latest music information MI [n] is sequentially recorded. Note that the request for the program guide may be made longer than the queue sheet (for example, every other day). This is because the program guide is not changed frequently.

[FM tuner and PC (air check device)]
Referring to FIG. 8, air check device 80 includes a PC 13 and an FM tuner 14. The FM tuner 14 receives an FM broadcast. The PC 13 includes an ADC (Analog to Digital Converter) 31 that converts an analog signal output from the FM tuner 14 into a digital signal. The ADC 31 indicates, for example, a sound card. However, in the case of a digital tuner that can output a digital signal, the PC 13 may not include the ADC 31. The PC 13 is also installed with a general-purpose MP3 (MPEG Audio Layer-3) encoder 32, a general-purpose web browser and a general-purpose MP3 player, as well as an air check program (38-41), which will be described in detail later. A status management database 35, an index database 36, a cue sheet database 37, a program guide database 75, and a song database 76 are constructed. The air check program includes an index generation module 38, a web interface 39, and an acquisition module 40. These details will be clarified in the following operation description.

  Next, the operation of the air check device 80 will be described.

  The FM tuner 14 and the PC 13 are always operating. Therefore, the FM tuner 14 always receives FM broadcasts, and the PC 13 records all received broadcast data in a storage medium (HDD 133).

  Referring to FIG. 9, the MP3 encoder 32 in the PC 13 is always operating, and encodes the digital broadcast data output from the FM tuner 14 and A / D converted into MP3 data (S401). In parallel with this, the web interface 39 also operates, and the MP3 data obtained by the MP3 encoder 32 is saved (recorded) in the MP3 database 34 as one MP3 file 42 every predetermined time (6 hours in this example) (S402). ).

  The web interface 39 also generates the recording situation management table 43 shown in FIG. 10 (S411) and stores it in the recording situation management database 35 (S412).

  Referring to FIG. 10, the recording status management table 43 includes a field 431 in which station IDs are described, and a plurality of records 432 corresponding to a plurality of MP3 files 42. Each record 432 describes the recording start time, recording end time, and file name of the corresponding MP3 file 42. FIG. 11 shows an example of the recording status management table 43.

  The file name of the MP3 file 42 is set to a combination of the station ID and the recording start time, for example, “OOSAKA_20050522180000.MP3” (MP3 is an extension indicating the MP3 file 42). The recording start time corresponds to the broadcast start time of the MP3 file (broadcast data), and the recording end time corresponds to the broadcast end time of the MP3 file. In short, the recording time coincides with the broadcast time.

  In principle, FM broadcasts are recorded for 24 hours every day. However, there is a case where a power failure occurs or the user turns off the power of the PC 13, so that all broadcast data is not necessarily saved as the MP3 file 42. In FIG. 11, the portions other than the hatched lines are not recorded.

  On the other hand, the index generation module 38 reads the MP3 file 42 from the MP3 database 34, generates an index file 44 based on the MP3 file 42 (S421), and stores it in the index database 36 (S422).

  Specifically, as shown in FIG. 12, the index generation module 38 divides the MP3 file 42 into a plurality of sections 45 every predetermined time. In this example, since the MP3 file 42 for 6 hours is divided every second, 21600 (= 6 hours × 60 minutes × 60 seconds) sections 45 are obtained. Then, the index generation module 38 writes the start address of each section 45 in the index file 44 in order.

  FIG. 13 shows an example of the index file 44. The index file 44 has a field 441 describing station IDs and a plurality of records 442 corresponding to a plurality of sections 45. Each record 442 describes the start address of the corresponding section 45. In this example, the offset (relative address) from the head address of the MP3 file 42 is written as the start address.

  Although the elapsed time (seconds) from the beginning of the MP3 file 42 is shown in FIG. 13, this notation may be present, but it may not actually be present. This is because the elapsed time of each offset (record 442) can be calculated from the number of offsets before that offset.

  Further, the file name of the index file 44 is also set to, for example, “OOSAKA_20050522180000.IDX” (IDX is an extension indicating the index file 44) by combining the same station ID and recording start time as the corresponding MP3 file 42.

[Song transfer processing]
The air check device 80 accumulates the on-air music and identifies the accumulated music. When the specified song is a song desired by the user, the song is extracted and transmitted to the mobile terminal 5 possessed by the user (song transfer process). Thereby, even if the user is not listening to the FM broadcast, the user can listen to the song on the portable terminal 5 after the favorite song is aired. Details of the song transfer process will be described below.

  Referring to FIG. 14, the acquisition module 40 in the PC 13 requests the cue sheet server 12 to transmit a desired cue sheet 29 every predetermined time (for example, every minute) (S301 and S302). The web server 23 in the cue sheet server 12 receives the request, reads the cue sheet 29 from the cue sheet database 28, and transmits it to the PC 13. The acquisition module 40 acquires the cue sheet 29 transmitted from the cue sheet server 12 (S302).

  Subsequently, the acquisition module 40 determines whether or not the cue sheet 29 acquired in step S302 has been updated from the cue sheet 29 acquired last time (S303). The cue sheet 29 acquired last time is stored in the cue sheet database 37. The acquisition module 40 compares the cue sheet 29 acquired in step S302 with the previously acquired cue sheet 29 and determines whether or not it includes new song information MI. For example, if the previously acquired cue sheet 29 is FIG. 15 and the cue sheet 29 acquired this time is also FIG. 15, the acquisition module 40 determines that the cue sheet 29 has not been updated (NO in S303). At this time, the PC 13 returns to step S301 without registering the cue sheet 29 acquired in step S302 in the cue sheet database 37.

  On the other hand, if the cue sheet 29 acquired this time in step S302 is as shown in FIG. 16, the acquired cue sheet 29 is a newly added song compared to the cue sheet 29 (FIG. 15) acquired last time. Information MI [n] is included. At this time, the acquisition module 40 determines that the cue sheet 29 has been updated (YES in S303). At this time, the acquisition module 40 updates the cue sheet 29 stored in the cue sheet database 37 to the latest one (S304).

  Subsequently, the PC 13 extracts song data desired by the user from the broadcast data stored in the MP3 database 34 using the newly added song information MIn (S306 and S307). Specifically, the web interface 39 in the PC 13 refers to the cue sheet 29 in the cue sheet database 37, and broadcast start time begin [n] of the music information MI [n] and the music information MI [n]. The broadcast start time begin [n−1] of the previous piece of music information MI [n−1] is extracted. Then, the web interface 39 refers to the station ID, begin [n] and begin [n−1] in the cue sheet 29, and the recording status management table 43, and identifies the file name of the corresponding MP3 file 42. .

  Further, the web interface 39 refers to the index file 44 corresponding to the specified file name, and extracts MP3 data whose broadcast time zone is from begin [n−1] to begin [n] (S306). The extracted MP3 data (hereinafter referred to as extracted music data) is stored in the memory 132 or the HDD 133.

  The extracted music data created by the above operation is music data corresponding to the music information MI [n−1]. Therefore, the web interface 39 registers the extracted MP3 data in association with the song information MI [n−1] in the song table 77 in the song database 76 (S307). An example of the music table 77 is shown in FIG. In the song table 77, the storage location of the extracted song data corresponding to the song information MI is registered.

  Subsequently, the PC 13 executes processing for transferring the extracted MP3 data to the user's portable terminal 5 (S308 to S313).

  First, the web interface 39 in the PC 13 determines whether or not the user desires notification of the extracted music data created in step S306 (S308). The PC 13 stores an extraction condition database 90 shown in FIG. The extraction condition database 90 includes keyword information related to the song that the user wants to notify, transfer flag information indicating whether or not to transfer the extracted song data, and data that can be reproduced on the mobile terminal 5 used by the user. Format information about the format. The keyword information is, for example, an artist name or a genre of music. Each information in the extraction condition database 90 is set in advance by the PC 13 in accordance with a user operation.

  The web interface 39 refers to the keyword information in the extraction condition database 90 and the song information MI [n-1] corresponding to the extracted song data to determine whether or not the extracted song data is the song data desired by the user. Judgment is made (S308). As a result of the determination, if the song information MI [n-1] is not related to the keyword information, for example, if the artist name in the song information MI [n-1] is different from the artist name in the keyword information (NO in S308). ), The process returns to step S301. That is, the PC 13 does not notify or transfer the extracted music piece data to the mobile terminal 5.

  On the other hand, when the song information MI [n-1] is related to the keyword in the keyword information as a result of the determination in step S308 (YES in S308), the web interface 39 further refers to the transfer flag in the extraction condition database 90. Then, it is determined whether or not the user wishes to transfer the extracted music data (S309). When the user does not wish to transfer the extracted music data (NO in S309), the web interface 39 transmits an acquisition notification of the extracted music data to the portable terminal 5 (S313). The acquisition notification is performed by e-mail, for example. The acquisition notification includes predetermined information (for example, song title and artist name) in the song information MI [n-1] corresponding to the extracted song data.

  If the result of determination in step S309 is that the user wishes to transfer extracted song data (YES in S309), the PC 13 converts the extracted song data into a format that can be played back by the portable terminal 5 (S311). The PC 13 refers to the format information in the extraction condition database 90 and converts the format of the extracted music data. Then, the PC 13 transmits the converted extracted song data to the portable terminal 5 (S312). For example, the PC 13 creates a mail including a part of the music information MI [n−1], and transmits the mail to the portable terminal 5 with the extracted music data attached to the mail, similarly to the acquisition notification created in step S313. .

  The music transfer process described above is repeatedly executed every predetermined time (for example, every minute). Therefore, each time new song information MI [n] is added to the cue sheet 29, the PC 13 extracts MP3 data of the song information MI [n-1] and transmits it to the mobile terminal 5 according to the user's wish. To do. As a result, even if the user is not listening to the radio broadcast, when a favorite song is on the air, the song data is transferred to the portable terminal 5 and can be reproduced on the portable terminal 5. For example, even when the user goes out with the portable terminal 5 and is not listening to a radio broadcast, the user can quickly obtain a favorite song that has been aired and play it on the portable terminal 5 to play the song. I can listen.

  When the storage capacity of the portable terminal 5 is limited, the user can also acquire the extracted music data as necessary after receiving the acquisition notification in step S313. The user can also update the extraction condition database 90 using the mobile terminal 5. Hereinafter, these operations (hereinafter referred to as response processing) will be described in detail.

  Referring to FIG. 14, when executing step S312 or step S313, the PC 13 executes a response process (S320). Referring to FIG. 19, the web interface 39 in the PC 13 monitors a response from the mobile terminal 5 for a predetermined period (S321). If there is no response from the portable terminal 5 within the predetermined time (NO in S321), the PC 13 ends the response process.

  On the other hand, when there is a response from the portable terminal 5 within a predetermined period (YES in S321), the web interface 39 executes processing according to the response message from the portable terminal 5 (S322 to S325). For example, when the response mail transmitted from the mobile terminal 5 includes some text in the message body (NO in S322), the PC 13 relates to the song information MI [n-1] among the keyword information in the extraction condition database 90. Delete keywords to be deleted. For example, when the music information MI [n−1] is notified based on the artist name “aaaa” in the keyword information, the artist name “aaaa” in the keyword information is deleted in step S325.

  On the other hand, if the response mail transmitted from the mobile terminal 5 is a so-called empty mail that does not include text in the message body (YES in S322), the web interface 39 has already transmitted the extracted song data to the mobile terminal 5 Whether or not (S323). In other words, it is determined whether the response mail of the mobile terminal 5 is a response mail for the operation in step S312 or a response mail for the operation in step S313.

  If the extracted music data has already been transmitted (NO in S323), that is, if the response mail from the mobile terminal 5 is for the mail transmitted in Step S312, the web interface 39 performs the following music transfer processing. The transfer flag in the extraction condition database 90 is changed so that the acquisition notification in step S313 is transmitted to the portable terminal 5 (that is, NO is determined in S309). On the other hand, as a result of the determination in step S323, if the response mail is a response to step S313 (YES in S323), the PC 13 converts the format of the extracted music data into an appropriate format and transmits it to the portable terminal 5 ( S310).

  With the above operation, the user of the mobile terminal 5 can freely update the information in the extraction condition database 90. Also, when receiving the acquisition notification in step S313, if the user wants to listen to the notified song, the extracted song data can be acquired by sending a blank e-mail to the PC 13, and can be reproduced on the portable terminal 5.

[Second Embodiment]
In the above-described embodiment, MP3 data is extracted based on the broadcast start times begin [n] and begin [n−1] in the music information MI registered in the cue sheet 29. However, when MP3 data is extracted based on these broadcast start times, data other than song data, for example, news and weather forecasts broadcast after a song may be extracted. For example, assume the following case. Referring to FIG. 20, the time zone in which song M3 (song title “LADY”, artist name “TOMMY Δ ×”) was actually broadcasted was 6: 47-6: 50, but after song M3. The broadcast start time of the broadcasted song M4 is 7:40. In the broadcast time zone from 6:50 to 7:40, programs such as Olympic information, news, and sports programs are broadcast as shown in the program table 70. Assume that the songs did not play during these programs.

  In this case, the created cue sheet 29 is as shown in FIG. That is, the broadcast start time begin [3] in the music information MI3 of the music M3 is 6:47, and the broadcast start time begin [4] of the music M4 is 7:40.

  When the PC 13 extracts MP3 data based on the broadcast start time of the cue sheet 29, the PC 13 extracts MP3 data of the broadcast time period PT3 from the broadcast start time begin [3] to begin [4] as data of the song M3. And transmitted to the portable terminal 5. In this case, the transmitted MP3 data (extracted music data) includes data other than the music M3 such as Olympic information and news. Since these extra data are unnecessary, it is preferable not to extract data other than the music piece M3 as much as possible.

  Further, when the music M3 is extracted based on the broadcast start time of the cue sheet 29, the music M3 data can be transmitted to the portable terminal 5 at least after 7:40. This is because the broadcast start time begin [4] of the song M4 is registered in the cue sheet after 7:40. Therefore, the user cannot listen to the song M3 with the mobile terminal 5 immediately after the broadcast of the song M3.

  Therefore, in the air cash system according to the second embodiment, the program table 70 is used together with the cue sheet 29 when extracting MP3 data. Referring to FIG. 20, when PC 13 obtains song information MI3 of song M3 from cue sheet 29, program end of program P2 (program name “Let's live on the earth”) that started song M3 during the program is shown. The time Pend (6:50) is read from the program table 70. When the current time exceeds the program end time Pend before the cue sheet 29 is updated and the music information MI4 of the music M4 next to the music M3 can be acquired, the broadcast start time begin [3 of the music M3. ] (6:47) to the program end time Pend (6:50), the MP3 data of the broadcast time period PT1 is extracted, and the extracted MP3 data (extracted music data) is associated with the music information MI3.

  In this way, by referring to the program guide 70 together with the cue sheet 29, it is possible to suppress data other than song data (Olympic information, news, etc.) from being included in the extracted MP3 data. Furthermore, the song data can be transmitted to the portable terminal 5 promptly when the favorite song M3 is turned on air. There is no need to wait until the on-air of the song M4 is started.

  Hereinafter, the operation of the PC 13 according to the second embodiment will be described. The PC 13 acquires the program guide 70 of each broadcast station from the cue sheet server 12 in advance and stores it in the HDD 133.

  Referring to FIG. 21, the operations from step S301 to S305 are the same as those in FIG. The web interface 39 reads the broadcast start time begin [n] from the latest song information MI [n] with reference to the cue sheet 29 (S305), and then refers to the song database 76 to display the previous song information MI [ It is determined whether MP3 data is already associated with [n-1] (S331). If they are not associated (NO in S331), the operations after S306 in FIG. 14 are the same. That is, this case corresponds to, for example, the song M2 in FIG. 20, and the broadcast start time begin [n] (broadcast start time of the song M3) and the broadcast start time begin [n−1] are the same program (P2). This case is included in the broadcast time zone.

  On the other hand, as a result of the determination in step S331, if the MP3 data is already associated with the previous music information MI [n-1] (YES in S331), the web interface 39 displays the program in the program table database 75. From the table 70, the program in the broadcast time period including the broadcast start time begin [n] of the latest song information MI [n] is specified. Then, the program end time Pend of the specified program is read out. When only the broadcast start time of each program is registered in the program table 70, the PC 13 regards the broadcast start time of the program broadcast next to the specified program as the program end time Pend of the specified program. Read out. For example, in the case of FIG. 20, when the latest song information is the song information of the song M3, the specified program is P2, and the program end time Pend is 6:50.

  The web interface 39 determines whether or not the current time exceeds the read broadcast end time Pend (S333). If the current time does not exceed the broadcast end time Pend (NO in S333), the process returns to step S301. In short, the PC 13 executes the determination step of step S333 every predetermined period unless the updated cue sheet 29 is acquired.

  As a result of the determination in step S333, if the current time exceeds the program end time Pend (YES in S333), for example, if step S333 is executed at 6:51 in FIG. 20, the PC 13 broadcast start time begin [n]. To MP3 data from the program end time Pend is extracted (S334). The extracted music data is associated with music information MI [n] (S335). The subsequent operations (S308 to S313 and S320) are the same as those in FIG.

  According to the above operation, the PC 13 refers to the cue sheet 29 and the program guide 70 to suppress the inclusion of extra information other than music in the extracted MP3 data. Furthermore, after the user's favorite song is on air, the song data can be transmitted to the user's portable terminal 5 more quickly.

  In the above embodiment, the broadcast content is music (music). However, the present invention can be applied not only to music but also to other contents such as video, and whether or not the data is compressed is not limited. That is, the form of broadcast data including content is not limited to FM radio, but may be satellite broadcast such as AM radio, Internet radio, TV (analog / digital), CS / BS (analog / digital).

  In the above embodiment, the PC 13 and the FM tuner 14 always operate and receive and record all broadcasts. However, in order to avoid wasting a limited storage area, a weekly schedule is set. It is possible to stop the operation at night when there is no broadcast, or detect the audio or video signal that has been broadcast and operate only when there is a broadcast, and stop the operation when there is no broadcast Good.

  In the above embodiment, the FM tuner 14 and the PC 13 constitute the air check device 80. However, an integrated dedicated machine that receives FM broadcasts and records them on the hard disk may constitute the air check device.

  In the above embodiment, the cue sheet server 12 acquires the cue sheet and the program table provided from the broadcasting station, but the operator of the cue sheet server 12 directly inputs the cue sheet and the program table to the cue sheet server 12. Then, it may be stored in the cue sheet server 12.

  In the above embodiment, the PC 13 obtains the cue sheet and the program guide provided from each broadcasting station via the cue sheet server 12, but may obtain them directly from each broadcasting station. Specifically, the acquisition module 40 shown in FIG. 8 directly accesses each broadcasting station server 16 instead of the cue sheet server 12. Since the formats of the cue sheet and the program guide are different for each broadcasting station, in this case, as shown in FIG. 22, the PC 13 includes a format conversion unit 21 that converts the acquired cue sheet and program guide format into a common format. Should be provided. The format conversion unit 21 stores the cue sheet 29 in the common format in the cue sheet database 37 and the program table 70 in the common format in the program table database 71. However, when the cue sheet and the program guide provided from the broadcasting station already have a common format, the acquisition module 40 bypasses the format conversion unit 21 and directly writes the acquired cue sheet into the cue sheet database 37 to display the program. The table 70 is directly written in the program guide database 71.

  In the above embodiment, the broadcast data is transmitted by wireless broadcasting, but may be transmitted by cable broadcasting or may be transmitted via an electric communication line such as the Internet. In order to receive broadcast data via the Internet, a broadcast data acquisition module 50 may be provided in the PC 13 as shown in FIG. 23 instead of the FM tuner 14, ADC 31 and MP3 encoder 32 shown in FIG. The broadcast data acquisition module 50 accesses the broadcast station server 16 and requests to transmit broadcast data uploaded in a state where it can be acquired (or broadcast data distributed as a real-time stream). Since the broadcast station server 16 returns broadcast data in response to this request, the broadcast data acquisition module 50 receives the returned broadcast data and stores it in the MP3 database 34. That is, the broadcast data acquisition module 50 downloads broadcast data from the broadcast station server 16.

  In the example shown in FIG. 23, the acquisition module 40 directly acquires the cue sheet and the program table from the broadcast station server 16, and the format conversion unit 21 converts the format of the cue sheet and the program table into a common format. As shown in FIG. 8, the acquisition module 40 may acquire the cue sheet and the program guide from the cue sheet server 12.

  Further, when the cue sheet and the program guide are multiplexed with the broadcast data, a demultiplexer (DMUX) 52 may be provided as shown in FIG. The demultiplexer 52 has a function of acquiring a cue sheet and a program guide instead of the acquisition module 40, and separates the cue sheet and the program guide from the broadcast data acquired by the broadcast data acquisition module 50. The broadcast data itself is stored in the MP3 database 34, the separated cue sheet is stored in the cue sheet database 37, and the program guide is stored in the program guide database 71.

  Further, like FM character multiplex broadcasting, it is also possible to multiplex cue sheets and program guides as character information by broadcast data transmitted by radio broadcasting by the DARC (DAta Radio Channel) method or the like. In this case, as shown in FIG. 25, the FM tuner 14 for FM character multiplex broadcasting is used, and the demultiplexer 52 separates the cue sheet and the program table from the broadcast data received by the receiving unit 54. The broadcast data itself is stored in the MP3 database 34 via the ADC 31 and the MP3 encoder 32. On the other hand, the separated cue sheet and program guide are converted into a common format as necessary, and stored in the cue sheet database 37 and the program guide database 71.

  In addition, as described above, an integrated air check device having the functions of both the FM tuner 14 and the PC 13 shown in FIG. 8 may be used. However, an acquisition module is provided for an air check device that does not have a network interface. It cannot be provided. Therefore, in such a case, as shown in FIG. 26, the acquisition module 40 may be provided in the PC 56 having the network interface, and the PC 56 may be connected to the input / output interface 60 of the air check device 58. As the input / output interface 60, a memory card may be used in addition to USB (Universal Serial Bus), IrDA (Infrared Data Association), and the like.

  In this example, the PC 56 acquires the cue sheet and the program table from the cue sheet server 12 or the broadcast station server 16 by the acquisition module 40, and the cue sheet database 37 and the program table database 71 via the input / output interface 60 of the air check device 58. Save to. If the format of the cue sheet and the program guide acquired by the acquisition module 40 is not a common format, the format conversion unit may be provided in the PC 56 or the air check device 58 as shown in FIG. Instead of the PC 56, a portable information terminal such as a mobile phone or a PDA may be used.

In addition, although MP3 data acquired from the outside is stored in the MP3 database 34, MP3 data acquired by other methods may be stored together here.
In the above embodiment, the user-desired song is extracted from the broadcast data recorded in the HDD 133 based on the extraction condition database 90. However, the PC 13 updates the cue sheet and acquires new song information. Alternatively, music data may be extracted based on the music information and sequentially stored in the HDD 133 or the memory 132. In short, the extraction condition database 90 may not be used when extracting music data.

  While the embodiments of the present invention have been described above, the above-described embodiments are merely examples for carrying out the present invention. Therefore, the present invention is not limited to the above-described embodiment, and can be implemented by appropriately modifying the above-described embodiment without departing from the spirit thereof.

It is a functional block diagram which shows the structure of the air check system by the 1st Embodiment of this invention. It is a block diagram which shows the hardware constitutions of the personal computer (PC) shown in FIG. It is a functional block diagram which shows the structure of the cue sheet | seat server shown in FIG. It is a figure which shows the data structure of the cue sheet | seat used with the air check system shown in FIG. It is a figure which shows an example of the cue sheet | seat shown in FIG. It is a figure which shows an example of the program schedule used with the air check system shown in FIG. It is a flowchart which shows operation | movement of the cue sheet | seat server shown in FIG. It is a functional block diagram which shows the structure of the air check apparatus shown in FIG. It is a flowchart which shows operation | movement of PC shown in FIG. It is a figure which shows the data structure of the recording management condition table produced | generated by PC shown in FIG. It is a figure which shows an example of the recording management status table shown in FIG. It is a figure for demonstrating the production | generation method and index extraction method of the index file by PC shown in FIG. It is a figure which shows the data structure of the index file produced | generated by PC shown in FIG. It is a flowchart which shows the detail of the music transfer process performed with PC shown in FIG. It is a figure which shows another example of the cue sheet different from FIG. It is a figure which shows another example of the cue sheet different from FIG.5 and FIG.15. It is a figure which shows the data structure of the music database produced | generated by PC shown in FIG. It is a figure which shows the data structure of the extraction condition database which PC shown in FIG. 8 memorize | stores. It is a flowchart which shows the detail of the response process which PC shown in FIG. 8 performs. It is a figure for demonstrating the outline | summary of the 2nd Embodiment of this invention. It is a flowchart which shows the detail of the other music transfer process different from FIG. It is a figure which shows the other example of PC by embodiment of this invention. It is a figure which shows the further another example of PC by embodiment of this invention. It is a figure which shows the further another example of PC by embodiment of this invention. It is a figure which shows the other example of FM tuner and PC by embodiment of this invention. It is a figure which shows the other example of the air check apparatus by embodiment of this invention.

Explanation of symbols

5 Mobile terminal 10 Air check system 12 Cue sheet server 13 Personal computer 14 FM tuner 24, 26, 29 Cue sheet 39 Web interface 40 Acquisition module 69, 70 Program guide 80 Air check device

Claims (7)

An air check system comprising a server and an air check device connected to the server,
The server
Server storage means for storing a cue sheet including a plurality of pieces of content information relating to the broadcast times of a plurality of pieces of content broadcast from a broadcasting station;
Updating means for sequentially adding content information of content broadcast over time to the cue sheet to update the cue sheet;
Server transmission means for transmitting a cue sheet stored in the server storage means to the air check apparatus in response to a request from the air check apparatus;
The air check device is
Receiving means for receiving broadcast data including a plurality of contents broadcast from a broadcasting station;
Air check storage means for storing the received broadcast data and the cue sheet ;
Obtaining means for obtaining the cue sheet from the server every predetermined time;
Each time the cue sheet is acquired, the acquired cue sheet is compared with the cue sheet stored in the air check storage unit, and it is determined whether or not the acquired cue sheet includes new content information. A judging means for judging;
Update means for updating the cue sheet stored in the air check storage means to the acquired cue sheet every time it is determined that the acquired cue sheet includes the new content information;
Extraction means for extracting content from broadcast data stored in the air check storage means by referring to the new content information each time the acquired cue sheet is determined to include the new content information; An air check system comprising: An air check device connectable to a server having a cue sheet in which content information relating to the broadcast time of broadcast content is sequentially added as time passes,
Receiving means for receiving broadcast data including a plurality of contents broadcast from a broadcasting station;
Air check storage means for storing the received broadcast data and the cue sheet ;
Obtaining means for obtaining the cue sheet from the server every predetermined time;
Each time the cue sheet is acquired, the acquired cue sheet is compared with the cue sheet stored in the air check storage unit, and it is determined whether or not the acquired cue sheet includes new content information. A judging means for judging;
Update means for updating the cue sheet stored in the air check storage means to the acquired cue sheet every time it is determined that the acquired cue sheet includes the new content information;
Extraction means for extracting content from broadcast data stored in the air check storage means by referring to the new content information each time the acquired cue sheet is determined to include the new content information; An air check device comprising: The air check device according to claim 2, further comprising:
It can be connected to the user terminal,
An air check apparatus comprising: an air check transmission unit configured to transmit the extracted content to the user terminal when the content is extracted. The air check device according to claim 3,
The air check transmission means further includes
A notification means for transmitting a notification to the user terminal before transmitting the extracted content;
An air check device comprising: content transmission means for transmitting the extracted content when receiving a response from the user terminal that transmitted the notification. The air check device according to any one of claims 2 to 4,
The air check storage means further stores content extraction conditions,
The extraction unit further extracts content satisfying the extraction condition. The air check device according to any one of claims 2 to 5,
The content information includes a broadcast start time of the content,
The acquisition means further acquires program guide information related to broadcast times of a plurality of programs broadcast from the broadcast station from the server,
It said extracting means further wherein identifying a program end time of the program broadcast content specified by the new content information, based on the broadcast start time of the new content information and the program end time, the new An air check device, wherein content specified by simple content information is extracted from the broadcast data. Content information relating to the broadcast time of the broadcasted content can be connected to a server having a cue sheet that is sequentially added as time passes , and the computer in the air check device includes an air check storage unit that stores the cue sheet. ,
Storing broadcast data including a plurality of contents broadcast from a broadcasting station in the air check storage means ;
Obtaining the cue sheet from the server every predetermined time;
Each time the cue sheet is acquired, the acquired cue sheet is compared with the cue sheet stored in the air check storage unit, and it is determined whether or not the acquired cue sheet includes new content information. A step of judging;
Updating the cue sheet stored in the air check storage means to the acquired cue sheet each time it is determined that the acquired cue sheet includes the new content information;
Each time it is determined that the acquired cue sheet includes the new content information, the step of extracting content from the stored broadcast data with reference to the new content information is executed. Air check program.

Images